Charitably, I think OP meant to say that in the rust project only four dependencies were added and that caused 400 transitive dependencies to be pulled. Adding the four Go equivalent will still result in 10x less packages being pulled.
It's a culture problem, Go authors prefer solutions that are self contained, rust authors embrace the culture that gave us left-pad.
But, at least in GP's case, it's not a stdlib problem. Not one solved by Go, anyway.